Neuroleptic, frequently used in acute porphyria without any adverse effects. No indications of CYP-inducing effects. Several references state non-porphyrinogenicity. Since long recommended for use during acute porphyric crises.

(To be edited, initial data ST OCT 04) High-dose neuroleptic phenothiazine with aliphatic side chain. Broad therapeutic spectrum including antipsychotic, sedative and antiemetic effects. Metabolized by CYP 2D6. MFM James, RJ Hift. Porphyrias. Br J Anaesth 2000; 85, 143-53: use (phenothiazines). EPI-list: safe Australian list: safe Merck: safe South African list: use French list: use Kalman, Bonkovsky: safe Moore MR, Hift RJ: Drugs in the acute porphyrias. Cell Mol Biol 43:89, 1997: safe

Uneventful use reported in 14 patients with acute porphyria.